FPCN11 CWNT 222130 FORECASTS FOR THE GREAT SLAVE LAKE AND MACKENZIE RIVER AREAS OF THE NORTHWEST TERRITORIES ISSUED BY ENVIRONMENT CANADA AT 4:00 P.M. MDT SATURDAY 22 AUGUST 2026 FOR TONIGHT SUNDAY AND SUNDAY NIGHT. THE NEXT SCHEDULED FORECAST WILL BE ISSUED AT 5:00 A.M. MDT SUNDAY. THEBACHA REGION INCLUDING FT. SMITH - SALT RIVER RESERVE. TONIGHT..PARTLY CLOUDY. CLEARING AFTER MIDNIGHT. LOW 16. SUNDAY..SUNNY IN THE MORNING THEN A MIX OF SUN AND CLOUD WITH 30 PERCENT CHANCE OF SHOWERS IN THE AFTERNOON. RISK OF A THUNDERSTORM LATE IN THE AFTERNOON. HIGH 25. HUMIDEX 29. UV INDEX 4 OR MODERATE. SUNDAY NIGHT..PARTLY CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS EARLY IN THE EVENING AND RISK OF A THUNDERSTORM. CLEARING IN THE EVENING. LOW 13. LUTSEL K'E REGION. TONIGHT..PARTLY CLOUDY. CLEARING BEFORE MORNING. WIND NORTHEAST 20 KM/H GUSTING TO 40 BECOMING LIGHT THIS EVENING. WIND BECOMING SOUTHEAST 20 OVERNIGHT. TEMPERATURE STEADY NEAR 16. SUNDAY..SUNNY IN THE MORNING THEN A MIX OF SUN AND CLOUD WITH 60 PERCENT CHANCE OF SHOWERS IN THE AFTERNOON. RISK OF A THUNDERSTORM LATE IN THE AFTERNOON. WIND SOUTHEAST 20 KM/H BECOMING LIGHT IN THE MORNING. WIND BECOMING NORTHWEST 30 GUSTING TO 50 IN THE AFTERNOON. HIGH 23. HUMIDEX 26. UV INDEX 4 OR MODERATE. SUNDAY NIGHT..PARTLY CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS EARLY IN THE EVENING AND RISK OF A THUNDERSTORM. CLEARING IN THE EVENING. LOW 13. FT. RESOLUTION REGION INCLUDING HWY. 6. TONIGHT..PARTLY CLOUDY. CLEARING BEFORE MORNING. WIND EAST 20 KM/H BECOMING LIGHT OVERNIGHT. LOW 17. SUNDAY..SUNNY EARLY IN THE MORNING THEN A MIX OF SUN AND CLOUD WITH 30 PERCENT CHANCE OF SHOWERS LATE IN THE MORNING AND IN THE AFTERNOON. WIND BECOMING WEST 20 KM/H NEAR NOON. HIGH 22. UV INDEX 4 OR MODERATE. SUNDAY NIGHT..CLEAR. LOW 13. HAY RIVER REGION INCLUDING ENTERPRISE. TONIGHT..PARTLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS OVERNIGHT. WIND NORTHEAST 20 KM/H BECOMING LIGHT THIS EVENING. LOW 18. SUNDAY..A MIX OF SUN AND CLOUD WITH 30 PERCENT CHANCE OF SHOWERS IN THE MORNING. CLEARING IN THE AFTERNOON. WIND WEST 20 KM/H BECOMING LIGHT NEAR NOON. HIGH 26. UV INDEX 4 OR MODERATE. SUNDAY NIGHT..CLEAR. LOW 13. FT. PROVIDENCE REGION INCLUDING KAKISA - CHAN LAKE. TONIGHT..PARTLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS. RISK OF A THUNDERSTORM THIS EVENING. LOW 13. SUNDAY..CLEARING IN THE MORNING. HIGH 26. UV INDEX 4 OR MODERATE. SUNDAY NIGHT..CLEAR. LOCAL SMOKE OVERNIGHT. LOW 11. FT. SIMPSON REGION INCLUDING JEAN MARIE RIVER. TONIGHT..PARTLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS THIS EVENING WITH RISK OF A THUNDERSTORM. CLEARING BEFORE MORNING. LOCAL SMOKE. LOW 12. SUNDAY..SUNNY. LOCAL SMOKE. HIGH 27. UV INDEX 4 OR MODERATE. SUNDAY NIGHT..A FEW CLOUDS. INCREASING CLOUDINESS AFTER MIDNIGHT. LOCAL SMOKE. LOW 13. FT. LIARD REGION INCLUDING NAHANNI BUTTE - SAMBAA K'E. TONIGHT..PARTLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS EARLY THIS EVENING. CLEARING OVERNIGHT. WIND SOUTHWEST 20 KM/H BECOMING LIGHT THIS EVENING. LOW 12. SUNDAY..SUNNY. WIND BECOMING SOUTHWEST 20 KM/H NEAR NOON. HIGH 25. UV INDEX 4 OR MODERATE. SUNDAY NIGHT..CLEAR. BECOMING PARTLY CLOUDY OVERNIGHT. LOCAL SMOKE OVERNIGHT. WIND SOUTHWEST 20 KM/H BECOMING LIGHT IN THE EVENING. LOW 9. YELLOWKNIFE REGION. TONIGHT..PARTLY CLOUDY. 30 PERCENT CHANCE OF SHOWERS OVERNIGHT WITH RISK OF A THUNDERSTORM. WIND BECOMING EAST 30 KM/H EARLY THIS EVENING. LOW 16. SUNDAY..MAINLY CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS IN THE MORNING. CLEARING IN THE AFTERNOON. RISK OF A THUNDERSTORM EARLY IN THE MORNING. WIND SOUTHEAST 20 KM/H BECOMING SOUTHWEST 20 IN THE MORNING. HIGH 22. UV INDEX 3 OR MODERATE. SUNDAY NIGHT..A FEW CLOUDS. LOCAL SMOKE OVERNIGHT. WIND SOUTHWEST 20 KM/H BECOMING LIGHT IN THE EVENING. LOW 12. NORTH SLAVE REGION INCLUDING WEKWEETI - WHATI - BEHCHOKO. TONIGHT..PARTLY CLOUDY. BECOMING CLOUDY THIS EVENING WITH 60 PERCENT CHANCE OF SHOWERS LATE THIS EVENING AND OVERNIGHT. RISK OF A THUNDERSTORM LATE THIS EVENING AND AFTER MIDNIGHT. LOCAL SMOKE. WIND SOUTHEAST 20 KM/H. LOW 11. SUNDAY..MAINLY CLOUDY WITH 60 PERCENT CHANCE OF SHOWERS EARLY IN THE MORNING. CLEARING NEAR NOON. LOCAL SMOKE. WIND SOUTHEAST 20 KM/H BECOMING LIGHT IN THE MORNING. HIGH 23. UV INDEX 3 OR MODERATE. SUNDAY NIGHT..A FEW CLOUDS. INCREASING CLOUDINESS OVERNIGHT. LOCAL SMOKE. LOW 11. WRIGLEY REGION. TONIGHT..CLOUDY WITH 30 PERCENT CHANCE OF SHOWERS EARLY THIS EVENING THEN PARTLY CLOUDY. RISK OF A THUNDERSTORM EARLY THIS EVENING. LOCAL SMOKE. LOW 11. SUNDAY..A MIX OF SUN AND CLOUD. WIND BECOMING NORTHWEST 20 KM/H GUSTING TO 50 IN THE AFTERNOON. HIGH 20. UV INDEX 3 OR MODERATE. SUNDAY NIGHT..BECOMING CLOUDY IN THE EVENING WITH 60 PERCENT CHANCE OF SHOWERS LATE IN THE EVENING AND OVERNIGHT. WIND NORTHWEST 20 KM/H GUSTING TO 50. LOW 12. NORMAN WELLS - TULITA REGION. TONIGHT..PERIODS OF RAIN. RISK OF A THUNDERSTORM THIS EVENING. AMOUNT 10 TO 15 MM. LOCAL SMOKE. WIND SOUTHEAST 20 KM/H BECOMING LIGHT THIS EVENING. LOW 12. SUNDAY..PERIODS OF RAIN. AMOUNT 10 TO 15 MM. WIND BECOMING WEST 30 KM/H GUSTING TO 50 IN THE MORNING. HIGH 15. UV INDEX 1 OR LOW. SUNDAY NIGHT..PERIODS OF RAIN. AMOUNT 5 TO 10 MM. WIND WEST 40 KM/H GUSTING TO 60. LOW 7. FORT GOOD HOPE REGION. TONIGHT..CLOUDY. RAIN BEGINNING THIS EVENING. AMOUNT 10 TO 20 MM. LOCAL SMOKE. WIND NORTHEAST 20 KM/H BECOMING NORTHWEST 20 OVERNIGHT. LOW 13. SUNDAY..RAIN. AMOUNT 10 TO 20 MM. WIND NORTHWEST 30 KM/H GUSTING TO 50. HIGH 16. UV INDEX 1 OR LOW. SUNDAY NIGHT..PERIODS OF RAIN ENDING NEAR MIDNIGHT THEN MAINLY CLOUDY. AMOUNT 5 MM. WIND NORTHWEST 30 KM/H GUSTING TO 50. LOW 7. DELINE. TONIGHT..MAINLY CLOUDY. PERIODS OF RAIN BEGINNING EARLY THIS EVENING AND ENDING AFTER MIDNIGHT. RISK OF A THUNDERSTORM THIS EVENING. AMOUNT 5 MM. LOCAL SMOKE THIS EVENING. FOG PATCHES OVERNIGHT. WIND EAST 30 KM/H GUSTING TO 50 BECOMING LIGHT NEAR MIDNIGHT. LOW 8. SUNDAY..BECOMING CLOUDY IN THE MORNING THEN PERIODS OF RAIN. FOG PATCHES DISSIPATING IN THE MORNING. HIGH 15. UV INDEX 2 OR LOW. SUNDAY NIGHT..PERIODS OF RAIN. AMOUNT 5 MM. WIND BECOMING NORTHWEST 20 KM/H GUSTING TO 40 IN THE EVENING. LOW 9. COLVILLE LAKE. TONIGHT..PARTLY CLOUDY. BECOMING CLOUDY LATE THIS EVENING THEN PERIODS OF RAIN. AMOUNT 10 TO 15 MM. LOCAL SMOKE. WIND BECOMING EAST 20 KM/H THIS EVENING. LOW 13. SUNDAY..PERIODS OF RAIN. AMOUNT 10 TO 20 MM. WIND NORTH 30 KM/H GUSTING TO 50. HIGH 15 WITH TEMPERATURE FALLING TO 12 IN THE AFTERNOON. UV INDEX 1 OR LOW. SUNDAY NIGHT..PERIODS OF RAIN ENDING OVERNIGHT THEN PARTLY CLOUDY. AMOUNT 5 MM. WIND NORTH 30 KM/H GUSTING TO 50. LOW 7. END